But could you retroactively connect an air conditioning unit to a controlled residential ventilation system and thus save the installation of new indoor units and new supply lines? Are there controlled residential ventilation systems that have preparations for this?
Yes, that is how it is done in many office buildings, restaurants, etc. A complex consisting of heating coils, cooling coils, and a controlled ventilation system is installed, thus cooling, heating, and ventilating entire floors. However, I think you have already seen how large all this is, and it is not done just because it is possible, but because the quantities are necessary. On the scale of a typical single-family house controlled residential ventilation system, it is a fight against windmills. You need about 800 cubic meters of air circulation per hour to effectively cool a room of 20 sqm. A typical controlled residential ventilation system for a single-family house has a total of only about 300-400 cubic meters for the entire house. And yes, I haven’t even mentioned dehumidification yet. I think you can figure out the rest.
